Year	% female
1970	48.7305
1971	48.73386
1972	48.74731
1973	48.84625
1974	48.71917
1975	48.71728
1976	48.83684
1977	48.69591
1978	48.68454
1979	48.65918
1980	48.67503
1981	48.67599
1982	48.6471
1983	48.53986
1984	48.62056
1985	48.6542
1986	48.61845
1987	48.5445
1988	48.54137
1989	48.59033
1990	48.65643
1991	48.58838
1992	48.60414
1993	48.57066
1994	48.62239
1995	48.55662
1996	48.50141
1997	48.65176
1998	48.79809
1999	48.80898
2000	48.43148
2001	48.54662
2002	48.62001
2003	48.57645
2004	48.51376
2005	48.46784
2006	48.6664
2007	48.58988
2008	48.64487
2009	48.69067
2010	48.57207
2011	48.726
2012	48.57635
2013	48.67212
2014	48.71615
2015	48.75533
2016	48.75188
2017	48.6577
2018	48.66165